参考：https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V2/arkts-persiststorage-0000001474017166-V2#section5462163812155从AppStorage中访问PersistentStorage初始化的属性1.初始化PersistentStorage：PersistentStorage.PersistProp('aProp',47);2.在AppStorage